InputNumber: issues with decimal separator for some locales, 0s are added to input

[krtek4]

I'm submitting a ... (check one with "x")

[x] bug report
[ ] feature request
[ ] support request

Plunkr Case (Bug Reports)

https://stackblitz.com/edit/github-2m1zuc

Current behavior

When creating a p-inputNumber for locales that have a different decimal separator for number and currencies, two 0s are padded after each number. This also happens when trying to delete a character with backspace, the number is deleted but two 0s are added to the value.

The issue can be traced back to the fact that the NumberFormat instance does not get the option setting the currency mode in getDecimalExpression : https://github.com/primefaces/primeng/blob/master/src/app/components/inputnumber/inputnumber.ts#L302

Since the "fr-CH" locale has different decimal symbols for numbers and currency (see https://www.localeplanet.com/icu/fr-CH/index.html), the generated regexp is wrong and this causes the issue down the line.

Expected behavior

No additional 0s are added.

Minimal reproduction of the problem with instructions

Add the following input number anywhere : <p-inputNumber mode="currency" currency="CHF" locale="fr-CH"></p-inputNumber>

What is the motivation / use case for changing the behavior?

It is impossible for the user to correctly input an amount.

Please tell us about your environment:

• Angular version: 10.1.1
• PrimeNG version: 9.1.3 and 10.1
• Browser: all
• Language: all

[darckyn]

Same error here

Locale = pt (pt-br)

Angular 11.0.3
PrimeNG version: 11.1.0